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JSONDeveloperValidator
Tool area
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How to use
How to use JSON Formatter
Common uses
JSON Formatter works well for these tasks
Debug API responses
Pretty-print copied JSON
Validate payloads before sharing
Recommended flow
Move from clean JSON to deeper inspection
FAQ
Frequently asked questions
Debug API responses
Paste JSON into the editor. Choose indent, minify or sort options. Review the highlighted output and outline tree.
Most people continue with JSONPath Evaluator, JSON / YAML / TOML / XML Converter, JSON ⇄ CSV Converter next.